Hello everyone!
Today we are going to see about JavaScript datatypes
JavaScript is a dynamically-typed language, which means you don't need to declare the data type of a variable before using it. however, understanding the different data types in JavaScript is crucial for writing effective and efficient code.
The 8 data types of JavaScript
- Number: Represent numeric values, such as integers or floating-point numbers.
- String: Represents text such as words or sentences.
- Boolean: Represents true or false values.
- Null: Represents the absence of any object value.
- Undefined: Represents an uninitialized or non-existent variable
- Object: Represent complex data structures, such as objects or arrays.
- Symbol: Represents a unique symbol value.
- Bright: Represents a large integer.
Examples and Use Cases
- Number: let age = 25;
- String: let name = "john";
- Booleans: let is admin = true;
- objects: let person = {name: "john", age:25};
Conclusion
Understanding JavaScript data types is essential for writing robust and maintainble code.by knowing the different data types and their uses,you can avoid common pitfalls and write more efficent code.